<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" class="src" />
      </div>
      <el-form
        class="login_form"
        label-width="0px"
        :model="loginForm"
        :rules="loginFormRules"
        ref="loginFormRef"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            type="text"
            prefix-icon="iconfont icon-user"
            v-model="loginForm.username"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            type="password"
            prefix-icon="iconfont icon-3702mima"
            v-model="loginForm.password"
          ></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登陆</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'tuan',
        password: '123456'
      },
      loginFormRules: {
        username: [
          {
            required: true,
            trigger: 'blur',
            message: '不能为空'
          },
          {
            min: 3,
            max: 15,
            trigger: 'blur',
            message: '字符长度 3 到 15'
          }
        ],
        password: [
          {
            required: true,
            trigger: 'blur',
            message: '不能为空'
          },
          {
            min: 3,
            max: 15,
            trigger: 'blur',
            message: '字符长度 3 到 15'
          }
        ]
      }
    }
  },
  methods: {
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) {
          return
        }
        const { data: res } = await this.$http.post('/login', this.loginForm)
        if (res.meta.status !== 200) {
          this.$message.error(res.meta.msg)
          return
        }
        this.$message.success(res.meta.msg)
        sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    },
    resetLoginForm() {
      // 重置表单
      this.$refs.loginFormRef.resetFields()
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
  position: relative;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    background-color: #fff;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
